How serious is CVE-2026-2869?

This vulnerability has a CVSS score of 4.8 out of 10, classified as MEDIUM severity. Proof-of-concept exploit code is publicly available, making this an active threat.

Is there exploit code available for CVE-2026-2869?

Yes, proof-of-concept exploit code for CVE-2026-2869 is publicly available on GitHub and security research platforms. This increases the risk of active exploitation.

Which products are affected by CVE-2026-2869?

CVE-2026-2869 affects janet-lang janet. Check the full CVE details for specific version information.

How do I fix CVE-2026-2869?

To remediate CVE-2026-2869, check for security patches from janet-lang. Apply all available updates and security patches. If no patch is available, implement recommended workarounds or security controls to mitigate the risk.

CVE-2026-2869

Medium

|4.8

Exploit Available

Plain English Summary

AI-powered analysis for quick understanding

This vulnerability allows an attacker to read data from memory locations they shouldn't have access to, which could expose sensitive information. However, the attack can only be carried out from the local environment, meaning the attacker needs to have access to the system where the software is running.

Technical Description

A vulnerability was identified in janet-lang janet up to 1.40.1. Affected by this vulnerability is the function janetc_varset of the file src/core/specials.c of the component handleattr Handler. The manipulation leads to out-of-bounds read. The attack can only be performed from a local environment. The exploit is publicly available and might be used. Upgrading to version 1.41.0 addresses this issue. The identifier of the patch is 2fabc80151a2b8834ee59cda8a70453f848b40e5. The affected component should be upgraded.

CVSS Vector Analysis

Attack VectorLocal

Attack ComplexityLow

Privileges RequiredLow

User InteractionNone

Confidentiality ImpactHigh

Integrity ImpactHigh

Availability ImpactHigh

ScopeChanged

Vector String

CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Exploit Resources

Search for proof-of-concept code and exploit modules

GitHub Search Exploit-DB Nuclei Templates Metasploit Vulners

Official References

NIST NVD

Est. Bounty

$638($500-$1K)

Vendor Response

Grade APatched in 4 days

Quick Information

Published

Feb 21, 2026

about 2 months ago

Last Modified

Feb 26, 2026

about 1 month ago

Vendor

janet-lang

Product

janet